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Complexity science aims to better understand the processes of both natural and man-made systems which are composed of many interacting entities at different scales. A disaggregated approach is proposed for simulating electricity systems, by using agent-based models coupled to continuous ones. The approach can help in acquiring a better understanding of the operation of the system itself, e.g. on emergent phenomena or scale effects; as well as in the improvement and design of future smart grids.
Research work by the IMF’s staff on the effectiveness of the country programs the organization supports, which has long been carried out, has intensified in recent years. IMF analysts have sought to “open up the black box” by more closely examining program design and implementation, as well as how these influence programs’ effectiveness. Their efforts have also focused on identifying the lending, signaling, and monitoring features of the IMF that may affect member countries’ economic performance. This book reports on a large portion of both the new and the continuing research. It concludes that IMF programs work best where domestic politics and institutions permit the timely implementation of the necessary measures and when a country is vulnerable to, but not yet in, a crisis. It points to the need for a wider recognition of the substantial diversity among IMF member countries and for programs to be tailored accordingly while broadly maintaining the IMF’s general principle of uniformity of treatment.
This paper summarizes the methods and types of indicators that are often employed, both insid and outside the IMF, to assess whether exchange rates are broadly in line with economic fundamentals.
This text provides a guide to understanding the mechanisms involved in the pathogenesis of muscoskeletal sepsis. It covers areas such as bone, cartilage, soft tissue, and biomaterial interaction in the face of infection.
Capital flows are closely monitored, but surprisingly little is known about the stocks of external assets and liabilities held by countries, especially in the developing world. This paper constructs estimates of foreign assets and liabilities and their equity and debt subcomponents for 66 industrial and developing countries for the period 1970-97. It explores the sensitivity of estimates of stock positions to the treatment of valuation effects not captured in balance of payments data. Finally, it characterizes the stylized facts of estimated stocks and asks whether there are trends in net foreign asset positions and differences in debt-equity ratios across countries.
In this issue, a team of economists look at approaches to modeling the use of IMF resources in order to gauge whether the recent decline in credit outstanding is a temporary or permanent phenomenon. Era Dabla-Norris and Gabriela Inchauste examine what drives the growth of firms, with a focus on informality and regulations. Evan Tanner and Issouf Samake use a vector autoregression approach to examine the probabilistic sustainability of public debt in Brazil. Mexico, and Turkey. And Rachel Glennerster and Yongseok Shin ask whether transparency pays?that is, does the frequency and accuracy of macroeconomic information released to the public lead to lower borrowing costs in sovereign debt markets?
This work responds to the need to find, in a sole document, the affect of oxidative stress at different levels, as well as treatment with antioxidants to revert and diminish the damage. Oxidative Stress and Chronic Degenerative Diseases - a Role for Antioxidants is written for health professionals by researchers at diverse educative institutions (Mexico, Brazil, USA, Spain, Australia, and Slovenia). I would like to underscore that of the 19 chapters, 14 are by Mexican researchers, which demonstrates the commitment of Mexican institutions to academic life and to the prevention and treatment of chronic degenerative diseases.
This new annual publication from the World Bank Group provides an overview and assessment of financial sector development around the world, with particular attention on medium- and low-income countries.